Quick complex number proof question:

195 Views Asked by At

How would I go about proving the following identity:

$$\frac{1}{\left|z\right|} = \left|\frac{1}{z}\right|$$

I keep finding myself going in circles. I've tried using this identity: $|z|^2 = z^*z$ conjugate.

1

There are 1 best solutions below

1
On BEST ANSWER

Hint: Remember that for complex numbers $a$ and $b$, $|a\cdot b| = |a|\cdot|b|$. Based on this, what can we say about $\left|z\cdot \frac{1}{z} \right|$?